<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>表格</title>
</head>
<body>
    <table border="1px" align="center">
        <tr>
            <td>111</td>
            <td>222</td>
            <td>333</td>
        </tr>
        <tr>
  \          <td>444</td>
            <td>555</td>
            <td>666</td>
        </tr>
        <tr>
            <td>777</td>
            <td>888</td>
            <td>999</td>
        </tr>
    </table>
</body>
</html>